Experimental Physics and
Industrial Control System

Steven Hartman <[email protected]> · Mon, 18 Dec 2000 14:03:34 -0500 (EST)

On Fri, 15 Dec 2000, Marty Kraimer wrote:
> Release 3.13.4 is now available.

I have experienced a problem with ca clients (including medm, probe, etc.)
compiled under 3.13.4 in connecting to PVs on 3.11 IOCs. The same clients
compiled using 3.13.3 work normally in connecting to these same PVs. For
example, using caExample (on a Solaris 7 host to get a PV residing on a
3.11 ioc) . . .

[437] epicsdev@parker%
[438] epicsdev@parker% ./caExample_3.13.3 RNG:PEI:ENGY:ao
RNG:PEI:ENGY:ao 800.000000
[439] epicsdev@parker% ./caExample_3.13.4 RNG:PEI:ENGY:ao
CA.Client.Diagnostic..............................................
    Message: "User specified timeout on IO operation expired"
    Severity: "Warning" Context: "ca_pend_io failure"
    Source File: ../caExample.c Line Number: 20
..................................................................
CA.Client.Diagnostic..............................................
    Message: "The request was ignored because the specified channel is
disconnected"
    Severity: "Error" Context: "ca_get failure"
    Source File: ../caExample.c Line Number: 21
Abort
[440] epicsdev@parker% 

I do not see the same problem with connecting to PVs on a 3.13 ioc. (I
don't have a 3.12 ioc here to test.)

I'm sorry I don't have more information to offer here, but I'm still
looking into it myself. If anyone would like more details or has seen
something similar, please let me know.

-- 
Steve Hartman
[email protected]
Duke Free Electron Laser Laboratory

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System